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Scan results different on an iPhone scanner vs a feather
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Scan results different on an iPhone scanner vs a feather

by bug0926 on Mon Aug 12, 2019 9:44 pm

Why when I scan on a feather using the bluefruit scanning advanced sample do I not get the device uuid and other info that my iPhone ble scanner picks up? The peripheral is obviously advertising it.

bug0926
 
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Re: Scan results different on an iPhone scanner vs a feather

by p2w on Tue Aug 13, 2019 3:39 am

Which Feather? The nRF52 based feather is able to show a lot. Check out the "central > advanced scan" example that is installed with the nRF52 BSP.

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Re: Scan results different on an iPhone scanner vs a feather

by bug0926 on Tue Aug 13, 2019 5:34 am

p2w wrote:Which Feather? The nRF52 based feather is able to show a lot. Check out the "central > advanced scan" example that is installed with the nRF52 BSP.


Yes that is the one with that example I ran.

Here’s what I got from it

ADV 158778] Packet received from 00:05:C6:AE:CA:DE
PAYLOAD 31 bytes
02-01-06-09-09-50-54-46-65-65-64-65-72-11-21-F0-00-00-00-00-00-0C-33-FF-FF-CC-CC-BF-A4-E6-B0
RSSI -45 dBm
ADV TYPE Connectable undirected
COMPLETE NAME PTFeeder

Vs what I got on iPhone
Attachments
A92FD6C7-54A4-433B-A4BA-6ABD95543787.png
A92FD6C7-54A4-433B-A4BA-6ABD95543787.png (426.46 KiB) Viewed 115 times
01D50205-BDFB-4C3F-A01A-DC8D2CE3A39E.png
01D50205-BDFB-4C3F-A01A-DC8D2CE3A39E.png (426.46 KiB) Viewed 115 times

bug0926
 
Posts: 24
Joined: Sat Jun 20, 2015 1:59 pm

Re: Scan results different on an iPhone scanner vs a feather

by adafruit_support_mike on Wed Aug 14, 2019 1:43 am

The UUID a BLE device transmits is a random string that changes periodically.

Having always-on devices transmitting truly unique and identifiable hardware ID codes to any device near enough to listen would be *way* too useful for police-state and creepy-stalker purposes.

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Re: Scan results different on an iPhone scanner vs a feather

by bug0926 on Wed Aug 14, 2019 5:55 am

adafruit_support_mike wrote:The UUID a BLE device transmits is a random string that changes periodically.

Having always-on devices transmitting truly unique and identifiable hardware ID codes to any device near enough to listen would be *way* too useful for police-state and creepy-stalker purposes.



But what about all the other info the scanner code didn’t pick up?

bug0926
 
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Re: Scan results different on an iPhone scanner vs a feather

by adafruit_support_mike on Wed Aug 14, 2019 11:34 pm

The two images above look pretty much the same. What information is missing?

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Re: Scan results different on an iPhone scanner vs a feather

by bug0926 on Thu Aug 15, 2019 5:55 am

adafruit_support_mike wrote:The two images above look pretty much the same. What information is missing?


The images are duplicate. Compare one image to the serial output in the post text.

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Posts: 24
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Please be positive and constructive with your questions and comments.